Tube severing machine



May 1, 1945.

E. G. CIICCHETTIl ErAL TUBE SEVERING' MACH-INE 3 Sheets-Sheet l lFiledEen. 18, 1944 uw 4 @N mm .om E Hw Q mm gv @Q af May 1, 1945.

E. G. clccHETTl Erm. 2,374,806

TUBE SEVERING MACHINE Filed Feb. 18, 1944 A3 Sheets-Shee't 2 May 1,1945.

E. G. clccHET-n ETY'AL v TUBE SEV ERING MACHINE v 3 Sheets-Sheet 5 FiledFeb. 18, 1944 .mmm 6m.. Dm.

Patented May 1, 1945 TUBE SEVERING MACHINE 1 Eugene G. Cicchetti, Bronx,N.,Y., and Frank D. Lewis, West Orange, N. J., assignors to BreezeyCorporations, Inc., Newark, N. J., a corporation of New JerseyApplication' February 1s, 1944, serial Nb. 522,988 'A 3 Claims. (Cl. ca-69') This invention relates to machines for severing into segmentsring-like objects, of circular crosssection, such as tubes, rods landthe like.

An object of the invention is to provide mechanism including aturn-table on which circular objects, of dierent radii and unlikediameters, may be clamped, thereafter being subjected to the action of acutter whereby segments of any required length are produced, their endsbeing radial with respect totheiraxes. K y v A further feature is in theprovision of a turnwith indices for each differentlyy diametered `object whereby duplicate segments of each varying radius may be produced.

Another purpose is to produce el`cient clampu ing means for suchobjects, so devised as to avoidl malformation and also surfaceimpairment.

These and other analogous Objects, which will become apparent as thedisclosure progresses, are

accomplished by the novel construction, com-A bination and arrangementof parts hereinafter described, and illustrated inthe accompanying Theturn-table is provided with a plurality of radial slots 26, arranged inpredetermined rela- I tion, to receive keys 21 projecting from thebottoms of adjustable work supports 28, and also the bodies of clampvbolts 29 threaded into nuts 30 guided and lprevented from turning byreason of theirfuppennarrowed key-like portions `3l engaging in theslots 26; the upper face of turntable 22 is provided with marginalgraduations 26 by lwhich `the supports may be set at varying distancesfrom the axis of the plate to accommotable` adapted for manualrotation,and provided date `rings of unlike diameter, each support 28 beingprovided with an index 26a. co-operative with the graduations. l

These supports have three steps on their upper surface, the lowermost 32consisting of a seat for V blocks 33, having beveled contacting surfacesfor rings of varying diameters, and held in posi` tion by dowel pins 34V and screws 35; the intermediate step 36 is counterbored to receive theheado-f the clamp bolts 29, and the uppermost step 31 has a longitudinalgroove 38 to slidably drawings, constituting a graphical component ofthis disclosure, and in which:

Figure 1 is a side elevational view of an embodiment of the invention,partly in section.

Figure 2 is a top plan `view of the same.

Figure 3 is a fragmentary plan View of the turn-table, detent and tubeclamping means.

Figure 4 is a transverse sectional view,'taken on. line 4 4 of Figure 3;

Figure 5 vis a similar sectional view, taken on line 5-5 of Figure 3.

Figure 6 is a top plan View of the parts shown in Figure 5.

Figure 7 is a plan view ofan adjustable support for a tube.

Figure 8 is a sectional view, taken on line 8 8 of Figure 5.

Referring in greater detail to the drawings, the machine will be seen toconsist of a support I 5 on which is secured an elongated rectangularplate baseIG, as by bolts I'I, having near its front end a rectangularplate I8 held rigidly on its upper surface by ush headed rivets I9.

Seated on the surface of the plate I8 is a cirl cular washer 20 fixed byrivets 2l to the under side of a turn-table 2.2, of amply largediameter, concentric therewith, both being axially mounted to rotate ona shoulder stud 23, fixed in a socket plate 23 set adjustably in theplate I8 on the base I6 and confined by a washer 24 through which passesa screw set centrally in the stud, thus providing means for shifting themechanism lengthwise of the base. Y

receive a key-like tongue 39 formed on the bottom of a clamp bar 40.

The bar 48 contains a, longitudinal slot 4I through which passes awing-headed clamp screw 42, threaded intothe step 31, acting as a limitstop for-.the movement of the clamp bar, in addition to drawing itdownwardly.

At the front end of the clamp bar 40, in its under side, is a recess tocontain a pad 43 `of nonmetallic material, 'as indurated fiber, rawhideor the like, toavoid abrasionk of the work part X with which it comes incontactand may be yof any required` thickness, The block isinterchangeably held inpositon by a dowel pin 44 and screws. 45, blocksof `different thicknesses being provided toclamp tubes of differentdiameters.

In order to accurately locate the position of the turn-table 22, `withrespect to theworkto be done, a ,plurality of tapered holes are formedthrough it,vv.uniformly distanced inwardly from its` peripheral ledgeand precisely spaced apart in accordance with variable, but knownrequirements. v

A series of stop gages `4I are bifurcated at their versely therethrough,centrally of its width. In` the bottom of the recess is a set screw 50,its point impinging on the periphery of the turn-table, binding the gagefirmly thereto, in set position. A detent 5l is shaped to engage in anyofthe recesseses, and is-formedon the upright stem 52 of a horizontaar`53s1idable ina trackway xed on the base I6, provided with aremovable: cover plate 54', and biased into engagement by tensionsprings 55, having their outer ends enf gaged with the ends of a rod 56passing through the stem, while their inner ends are anchored-tc pins 51set in the base I6;r a handle'elernent 53; Y

is provided to retract the det'entr On the rear portion of the base lliare bolted spaced-apartrbrackets 59, their raised portionsl constitutingbearings receptiveof pintle's 60 ex#-y i tube; the turn-table may thenbe rotated clocktending outwardly from the pad 6l of aframe 162 having aforwardly reaching arm 53 shaped to present a transverse bearing 84ifor'avfspindle55.`

A pulley 66 is fixed onthe outer end; ofA the spindle, over which istrained-abelt-(51y leading from a drive pulley 6d onfthe shaft BS'of anelectric motor 1li, its base 1l' being adjustablyv con-v nected by bolts12` to-theframe-62- A guard13 is fixed on the front-portion of' thefran'ie,v covered-by a removablerface.plate'mfghavy ing" apn-'arcuate'slot 15, its radius corresponding withthev axis ofthe pintlesll;afnut'16'h0l`d`sla metal-cutting, circular saw T1 on the` spindle 65;The saw is freely revoluble concentrically within the guard 13 andv indirect alinemen't with the center of the fixture, over the'p'oint'where' cutting is to be done, as at Ze-Z in Figure 6.

A lever-like handle bar 18, set in the front ofv therk frame G2','provid'sfmanuallmeans for tilting the saw and 'its' frame 'relativetothe work, as best indicated in Figurel.

A stop' lug'19, carriedby the frame 63, limits the 'downward nl'ovexnentof the saw by'coining in cned to retain the tube securely. Upon loweringthe handle 18 the saw is brought into contact with the tube, cutting italong line Z--Z, Figure 6, severing the shortA end pieces, leaving thetube a full circle'oi 360 degrees when its ends are sprung intoalinement.

Aiterrais'in'g the saw, theeturnetable is rotated until the -detent '5|enters the recess 49 of the stop gage d1, as shown in Figure 3, thuslocking the turn-table for a second `cut of the tube by the v Thissecond cut may be for a Short piece, for exarlflple,` 10- degrees"angular extent from the wise, as Seen in Figure 2, until another stopgage is in position opposite the detent 5I, which is released to locktheturn-table.

.y The saw may be lowered again, cutting the remaining tube into twoparts, one of substantially 'de'greesand the other o-ff295 degreesangular extent; the severalparts of the severed' tuibeare removed-in anobvious manner. y

YHaving thus fully describedfthe invention, what isf' clainiedas-newanddesired to belsecuredV by Letters Patent' of theUnijted States, is:V

- 1'. A- machine for severing rings into segments", of predeterminedlength', comprising a bed havingv a vert-ical spindle, a turn-tablelrotatable, on

' said spindle, said turmta'ble having a pluralityy of radialfslots,vsupport-blocks adjustably guided in the slots, said blocks havingV'shape`dy recesses, clamps movable over said recesses', said clampsbeing adjustablein thickness, means for' locking said blocks in selectedpositionsto accommodate contact with the head of an adjustable stopscrew 80 set in the base I5 of the' machine; while the l upward movementof the saw' is limited' by the beveled rear end 8l of the'fi'ame' G3contacting 1 the base plate' I'G. Y l

When using they machine ,an `operator consults a table showing thesettings of the stop gages 41',v the work supports 23 and pa-ds 45approximate for cutting, a tube' of given radius and external diameter.n y

' The selected pads dibeing secured, the work supports 28 are'adjustedradially until' the indexes 26a are positioned vopposite thepropergradu'ations 26', and secured by the'clamp bolts 29. The' stopgages 41 areset in theircorrect position by inserting the pins 48' inthe proper holes 46, whereupon the turn-table is rotated into itsinitial position, indicated when the detent 4I enrin-gs of varyingdiameters, means to press said clainpsagainsttherings` and-a circularsaw arranged to swing over and upon a ring on said turniftable'therebyto cut the same into arcuate segments of predetermined length.

2. lin-*combination with a turn-table having work holding means thereon,a pluralityy oi gage blocks bifurcate'd to tthel peripheral edge ofsaidturmt'able', pinsf'passing through said turntable and both forks ofvsaid fblocks,v each block having aV` groove in its'fouter end, aspring-drawn dog engageable` in the groove of either block, meansv toguide said dog 'in a` radial path, and means to manually retract saidldog.` l

3'. AL machine" for severing' rings into'segments of predeterminedlengths', comprisinga rotatable turn-table provided witha plurality oi?spaced apart apertures disposed' near itsperiphery, a plu-v rality oistop gages having pins adapted to enter any of said` apertures, aVstationary frame, a de tent mounted on said frame and adapted to bebrought into engagement with said stopgages selectively to lock saidvturn-table -inV position, blocks adjustable along the upper yface ofthe,turn-table and arranged to support the rings and a saw arranged to cutthenrings into segments.

EUGENE: G. CICCHETII.; FRANK D. LEWIS.

